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Insects

Title:		"Leaf UV-B Irradiation and Mycorrhizal Symbionts Affect Lettuce VOC Emissions and Defence Mechanisms, but Not Aphid Feeding Preferences"
Author(s):		Zeni V; Grassi A; Santin M; Ricciardi R; Pieracci Y; Flamini G; Di Giovanni F; Marmugi M; Agnolucci M; Avio L; Turrini A; Giovannetti M; Castiglione MR; Ranieri A; Canale A; Lucchi A; Agathokleous E; Benelli G;
Address:		"Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy. Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy. Interdepartmental Research Center Nutrafood-Nutraceuticals and Food for Health, University of Pisa, 56124 Pisa, Italy. Department of Life Science, University of Siena, Via Aldo Moro 2, 53100 Siena, Italy. Department of Biology, University of Pisa, Via L. Ghini 13, 56126 Pisa, Italy. Department of Ecology, School of Applied Meteorology, Nanjing University of Information Science & Technology (NUIST), Nanjing 210044, China"
Journal Title:		Insects
Year:		2022
Volume:		20221224
Issue:		1
Page Number:		-
DOI:		10.3390/insects14010020
ISSN/ISBN:		2075-4450 (Print) 2075-4450 (Electronic) 2075-4450 (Linking)
Abstract:		"Arbuscular mycorrhizal fungi (AMF) and ultraviolet-B radiation (UV-B) play important roles in plant-insect interactions by altering plant physiology and histology. We hypothesized that UV-B-induced oxidative stress was mitigated by AMF symbiosis. In this study, we conducted a multifactorial experiment to explore lettuce plant response to AMF inoculation and UV-B exposure (0.4 W m(-2); 16 h d(-1); 2 weeks), either together or individually, as well as the interaction with the polyphagous insect pest Myzus persicae (Sulzer). Lettuce plants subjected to UV-B radiation showed an increase in callose and oxidative stress indicators, as well as a decrease in stomatal density. Mycorrhizal colonization cancelled out the effect of UV-B on stomatal density, while the symbiosis was not affected by UV-B treatment. The plant volatile emission was significantly altered by UV-B treatment. Specifically, the non-terpene 1-undecene abundance (+M/+UVB: 48.0 +/- 7.78%; -M/+UVB: 56.6 +/- 14.90%) was increased, whereas the content of the non-terpene aldehydes decanal (+M/+UVB: 8.50 +/- 3.90%; -M/+UVB: 8.0 +/- 4.87%) and undecanal (+M/+UVB: 2.1 +/- 0.65%; -M/+UVB: 1.20 +/- 1.18%) and the sesquiterpene hydrocarbons (+M/+UVB: 18.0 +/- 9.62 %; -M/+UVB: 19.2 +/- 5.90%) was decreased. Mycorrhization, on the other hand, had no significant effect on the plant volatilome, regardless of UV-B treatment. Aphid population was unaffected by any of the treatments, implying a neutral plant response. Overall, this study provides new insights about the interactions among plants, UV-B, and AMF, outlining their limited impact on a polyphagous insect pest"
Keywords:		Amf Myzus persicae Ros chemical ecology lipid peroxidation stomatal density volatile organic compounds;
Notes:		"PubMed-not-MEDLINEZeni, Valeria Grassi, Arianna Santin, Marco Ricciardi, Renato Pieracci, Ylenia Flamini, Guido Di Giovanni, Filippo Marmugi, Margherita Agnolucci, Monica Avio, Luciano Turrini, Alessandra Giovannetti, Manuela Castiglione, Monica Ruffini Ranieri, Annamaria Canale, Angelo Lucchi, Andrea Agathokleous, Evgenios Benelli, Giovanni eng PRA_2020_19/University of Pisa/ Switzerland 2023/01/21 Insects. 2022 Dec 24; 14(1):20. doi: 10.3390/insects14010020"